I'm currently coloring a Luthien in Silver from ArdaWigs via spray bottle with isopropyl alcohol and liquitex acrylic ink in sap green. I'm using a ratio of one cup isopropyl with four dropperfulls of ink.

At first, the roots of the wig was not taking. I thought it was because it was propped and hanging from my makeshift wigform. I laid it down and sprayed it; if gravity was the culprit, then the ink would flow toward the uncolored areas. It still didn't take.

It could just be since the hair is thicker at the roots the dye is having trouble getting to all the hair. Since it does seem to have dyed it a bit I would suggest just keep layering on the dye and eventually you should get a solid green.

It could just be since the hair is thicker at the roots the dye is having trouble getting to all the hair. Since it does seem to have dyed it a bit I would suggest just keep layering on the dye and eventually you should get a solid green.

I own a Luthien and it's actually quite thin at the roots. Could it have something to do with the skin top?

I think it might be a property of hiperlon that it wicks dyes like this... I've tried dyeing wigs from both EpicCosplay and Arda with sprayed inks, and it always ends up like this, whether the wig is flat or hanging. I do eventually get some coverage at the roots, but it's always darker at the ends. Maybe try painting a more concentrated mixture onto the remaining white areas?